51
Rev. 05/2020
Removal and Replacement
1) Turn off the main power supply to the furnace.
2) Loosen and remove the thumbnuts securing the blower/flipper assembly to the air
tube.
3) Disconnect the electrical wire from the blower.
4) Remove the flipper assembly from the blower by removing the four bolts. This will
require a 7/16 inch wrench.
5) Attach the existing flipper assembly to the new blower.
6) Rewire the electrical wire to the blower.
Contact a licensed electrician if you have
any questions.
7) Securely fasten the blower back to the air tube ensuring that there are no air leaks.
If the flipper is unable to open and close freely, or remains partially open or partially closed,
the furnace will starve for air resulting in a smoldering fire instead of an intense fire.
More smoke and creosote is the result. If the flipper is not operating correctly, it causes a
snowball effect of problems.
MAINTAIN THE FLIPPER!
Air Box(s)
Principle
The air box is designed to distribute the appropriate percentage of air from the blower(s),
into different areas of the firebox so the fire will burn efficiently and clean.
Maintenance / Result
Check for ashes in the air box. If ashes are in the air box, they may interfere with the
opening and closing of the flipper. If ashes cover
the air outlets, less air will get into the firebox. When
raking ashes, be careful not to pull the ashes over or
into the air box(s).
Be certain the ashes are cold
and extinguished before attempting to remove
ashes from the air box.
To maintain the air box, remove the blower / flipper
assembly and clean the ashes out of the air box with
a mini-vacuum that is made for ashes, metal brush
or metal scraper. You may need to loosen up hard
packed ashes. Securely fasten the blower / flipper
assembly back onto the large air tube ensuring there
are no air leaks.
Air Box
THE FLIPPER MUST OPERATE PERFECTLY OR
PROBLEMS QUICKLY ARISE.
